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taylrl September 29th, 2014 12:54 AM

A laymans description of Standard Deviation

I am writing a report for the layman where I am looking at changes in various metrics. What I want to explain is that some changes are in-line with normal fluctuations and so the overall upwards or downwards change isnt really noteworthy. I was using the term 'in-line with expectations' however the underlying trend might not atually be what was expected and I want to be cautious. What I would like to explain is that the change is within 1 standard deviation but without using the term 'standard deviation' as I think this might switch those not familiar with statistics off.

Any ideas how I could describe this anyone?

Many thanks,

v8archie September 29th, 2014 12:11 PM

'within normal variation'
'within normal bounds'

CRGreathouse September 29th, 2014 12:39 PM

We expect that the result will fall in the range X..Y, and these results are within expected bounds (or tolerance, etc.).

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